Merge pull request #27 from AlexBaranosky/master

extend java and JS Regexes to the Schema protocol
added optional-key? fn
Update docs on text fixture to reflect fn name
Merge pull request #28 from trptcolin/fixture_docs

Update docs on text fixture to reflect fn name
fixes assert-iae, format now called properly and w/cljs friendly version

The macro was expanding out to (format ("foo")) before causing the
String to be treated as a Fn.
Merge pull request #29 from bmabey/master

fixes assert-iae, format now called properly and w/cljs friendly version
Update changelog
Add never-validate meta option
Small changes in support of new stuff
Add overloads to `utils/error!` that use ex-info

Callers can now optionally pass a map to `utils/error!`.  This map will
be accessible on the ex-data of the resulting exception `(ex-data *e)`.
Modify `s/validate` to pass a map to `utils/error!`

The map has three keys - the schema, the data and the error. It is
subsequently accessible by calling `ex-data` on the resulting exception.

This addresses #30 - becaues if the cause of our data is hidden in a long
sequence and truncated in the repl, like so ...

     (s/validate [Number] `[1 2 ~@(range 100) "bob"]) ExceptionInfo
     Value does not match schema: [nil nil nil nil nil nil nil nil nil
     nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
     nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
     nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
     nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
     nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
     nil nil nil nil nil nil ...]  clojure.core/ex-info (core.clj:4327)

... all is not lost, for we can do this ...

     (remove nil? (:error (ex-data *e)))

... and find that it is "bob" that is the cause of all our troubles.

     ((not (instance? java.lang.Number "bob")))
Merge pull request #33 from danielneal/feature/validation-error-in-ex-info

Feature/validation error in ex info
Use ex-info for s/defn errors as well, keeping clean stack traces.